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Texas Instruments TPS26624DRCT
- Part No.:
- TPS26624DRCT
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS26624DRCT.pdf
- Description:
- IC ELECTRONIC FUSE 5% 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:413
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Product details
Overview
TPS26624DRCT from Texas Instruments is a 60-V, 800-mA industrial eFuse with integrated input and output reverse polarity protection, 478-mΩ total RON, adjustable 25–880-mA current limit (±5% accuracy at 880 mA), and latch-off fault response. It operates from 4.5 V to 60 V and delivers fast 0.3-µs reverse current blocking - used in PLC I/O modules for robust DC bus protection against surge, brownout, and polarity faults.
For engineers reviewing the TPS26624DRCT datasheet, TPS26624DRCT pinout, TPS26624DRCT application, or TPS26624DRCT equivalent, key selection criteria include its dual-side reverse polarity support, programmable OVP/UVLO thresholds, dV/dt-controlled slew rate, ±60-V absolute max rating, and UL 2367/IEC 62368-1 certification for industrial safety-critical power rail protection.
Technical Context
The TPS26624DRCT implements back-to-back N-channel MOSFETs with integrated gate drivers and precision current-sense amplifiers to enable bidirectional reverse polarity protection - detecting VIN–VOUT < –54 mV (falling) for input-side and < –(60–VIN) for output-side blocking. Its programmable OVP uses resistor-divider feedback into the OVP pin with 1.2-V internal reference and 4.84-µs disable delay.
It features independent control blocks for UVLO (1.2-V threshold), current limiting (via ILIM pin resistance), and dV/dt ramp control (via capacitor on dVdT pin), all operating across –40°C to +125°C with 340-µA quiescent current in active mode and 12-µA shutdown current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 60 V - supports common industrial DC buses including 24 V and 48 V systems without external regulation. |
| Total RON | 478 mΩ max at 25°C - limits conduction loss to ≤225 mW at 800 mA, enabling compact thermal design. |
| Current Limit Range | 25 mA to 880 mA (±5% at 880 mA) - set by 7.5 kΩ–267 kΩ resistor on ILIM pin for precise load matching. |
| Reverse Polarity Protection | Input: –60 V; Output: –(60–VIN) - enables safe operation during field wiring errors or battery reversal in both supply and load sides. |
| Fault Response | Latch-off - requires SHDN pin toggle to reset after overcurrent, overvoltage, or thermal fault, preventing uncontrolled auto-recovery. |
| Package | 10-pin VSON (3 mm × 3 mm) - exposes PowerPAD™ for low-θJA (44.8°C/W) and high-power density mounting. |
| Standards Compliance | UL 2367 Recognized (File No. 169910); IEC 62368-1 Certified - meets industrial safety requirements for end-equipment certification. |
Pinout & Package
TPS26624DRCT is housed in a 3.00 mm × 3.00 mm, 10-pin VSON package (DRC) with exposed PowerPAD™ thermally connected to RTN. The package supports reflow soldering per JEDEC J-STD-020 and achieves 20.7°C/W junction-to-board thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power Input | High-voltage DC bus connection; withstands –60 V to +62 V transient stress. |
| 2 UVLO | Undervoltage Threshold Input | Resistor-programmable lockout point (1.2 V ref); open or tied to IN disables UVLO. |
| 3 OVP | Overvoltage Threshold Input | Resistor-programmable cut-off threshold (1.2 V ref); connect to RTN to disable OVP. |
| 4 SHDN | Shutdown Control | Active-low logic input; pulsed low→high resets latched faults (TPS26624 only). |
| 5 RTN | Reference Ground | Internal bias reference node; must be connected to system ground plane separately from GND. |
| 6 GND | System Ground | Power return path for FLT, dVdT, ILIM, and SHDN circuits; separate from RTN for noise isolation. |
| 7 ILIM | Current Limit Programming | Sets overload threshold via resistor to RTN; 7.5 kΩ yields 880 mA ±5% limit. |
| 8 dVdT | Slew Rate Control | Capacitor-to-RTN sets output ramp time (e.g., 22 nF → 11 ms ramp to 24 V). |
| 9 FLT | Fault Indicator Output | Open-drain active-low flag; sinks up to 10 mA; signals OCP, OVP, UVP, or TSD events. |
| 10 OUT | Power Output | Protected load-side rail; blocks reverse current within 0.3 µs when VIN–VOUT < –54 mV. |
Key Features
| Feature | Design Value |
|---|---|
| Dual reverse polarity protection | Independent input (–60 V) and output (–(60–VIN)) blocking eliminates need for external diodes or MOSFETs in bidirectional fault scenarios. |
| Programmable slew rate control | dV/dt pin accepts 6.8–100 nF capacitor to limit inrush current during hot-plug, reducing stress on upstream capacitors and connectors. |
| Precision ±5% current limit | Enables accurate power budgeting and avoids overdesign of input supplies while maintaining margin for worst-case load transients. |
| Fast 220-ns short-circuit trip | Isolates faulty loads before energy dissipation exceeds MOSFET SOA, protecting both device and downstream circuitry. |
| Integrated surge immunity | Meets IEC 61000-4-5 (surge) and IEC 61000-4-4 (EFT) without external TVS or RC snubbers - simplifies BOM and layout. |
Applications
| PLC I/O Modules | AC & Servo Drives |
|---|---|
Use Scenario: Protecting 24-V digital input/output channels from field-wiring reversals, ESD, and load shorts in modular automation controllers. IC Role / Device Role / Timing Role: High-side eFuse providing bidirectional reverse polarity blocking, programmable current limiting, and latch-off fault isolation. Use Value: Eliminates need for discrete reverse-protection diodes and fuses, reducing board area by >30% and enabling certified Class 1 Div 2 designs. | Use Scenario: Securing auxiliary 24-V or 48-V control rails feeding gate drivers, encoders, and communication interfaces in motor drive cabinets. IC Role / Device Role / Timing Role: Input rail protector with fast 0.3-µs reverse-current blocking and IEC 61000-4-5 surge compliance. Use Value: Prevents latch-up and damage during cable coupling events or ground-loop transients in noisy industrial environments. |
| Sensor & Control Systems | PoE High-Side Protection |
Use Scenario: Powering loop-powered 4–20-mA sensors and smart transmitters from centralized 24-V DC supplies in hazardous-area instrumentation. IC Role / Device Role / Timing Role: Fault-tolerant power switch with UVLO/OVP cutoff, thermal shutdown, and reverse polarity immunity. Use Value: Ensures uninterrupted operation during brownouts and prevents sensor damage from accidental reverse connection during maintenance. | Use Scenario: Adding robust overcurrent and reverse-polarity protection to the high-side of PoE-powered devices (e.g., IP cameras, access points) using 48-V DC input. IC Role / Device Role / Timing Role: Industrial-grade eFuse replacing basic MOSFET+resistor solutions with integrated diagnostics and safety certification. Use Value: Achieves UL 2367 recognition and IEC 62368-1 compliance for PoE equipment without redesigning front-end protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar eFuse applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS26625DRCT | Same pinout, package, and specs - differs only in fault response: auto-retry instead of latch-off. | Suitable where automatic recovery after transient overloads is preferred (e.g., non-critical sensor rails). | Select TPS26625DRCT if system-level fault management requires self-resetting behavior without host intervention. |
| TPS26634DRCT | Higher 1.5-A current limit, same 60-V rating and dual reverse polarity protection; adds adjustable soft-start and improved thermal performance. | Better suited for higher-power loads like solenoid drivers or multi-channel I/O where >800 mA is required. | Choose TPS26634DRCT when scaling current capacity while retaining identical protection architecture and layout compatibility. |
Compared with TPS26625DRCT, the TPS26624DRCT provides deterministic latch-off behavior ideal for safety-critical subsystems requiring manual fault acknowledgment; versus TPS26634DRCT, it offers lower cost and smaller footprint for 800-mA applications without needing extra current headroom.
Availability
TPS26624DRCT is available at Aetrix Electronics and suitable for PLC I/O modules, AC/servo drives, and sensor/control systems requiring stable component supply, long-term industrial lifecycle support, and certified surge protection.
Supply support for TPS26624DRCT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management ICs for industrial, automotive, and communications markets.
The TPS2662x family was designed specifically for industrial power rail protection - delivering integrated reverse polarity, programmable fault thresholds, and safety certifications in compact VSON packages.
FAQ
What is the maximum reverse voltage the TPS26624DRCT supports on its output pin?
The TPS26624DRCT supports output reverse polarity protection down to –(60 – VIN) - meaning at 24 V input, it blocks reverse voltages as low as –36 V. This capability is exclusive to TPS26624 and TPS26625 variants and eliminates need for external reverse-blocking components in holdup-capable systems.
How does the TPS26624DRCT respond to an overcurrent fault?
The TPS26624DRCT responds to overcurrent with latch-off behavior: it opens the internal FETs and holds the FLT pin low until the SHDN pin is toggled (low then high). This ensures persistent fault indication and prevents automatic restart during sustained faults - critical for industrial safety compliance.
Can the TPS26624DRCT be used without connecting the UVLO and OVP pins?
Yes - the TPS26624DRCT can operate with UVLO disabled by connecting pin 2 (UVLO) directly to IN via ≥1-MΩ resistor, and OVP disabled by connecting pin 3 (OVP) to RTN. Both configurations are explicitly supported in the datasheet and maintain full functionality of current limiting, reverse protection, and slew control.
What thermal performance can be expected from the TPS26624DRCT in a standard 2-layer PCB layout?
In a typical 2-layer board with 0.8 cm² top and 4.5 cm² bottom RTN copper planes, the TPS26624DRCT achieves 20.7°C/W junction-to-board thermal resistance. At 800 mA and 478-mΩ RON, power dissipation is ~304 mW, resulting in ~6.3°C temperature rise above board - well within the –40°C to +125°C operating range.
Does the TPS26624DRCT meet IEC 62368-1 for end-equipment safety certification?
Yes - the TPS26624DRCT is IEC 62368-1 certified and UL 2367 recognized (File No. 169910), with RILIM ≥ 7.5 kΩ ensuring ≤0.91-A maximum current for compliance. These certifications validate its use in final industrial equipment without requiring additional external safety components.
TPS26624DRCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Electronic Fuse
- Sensing Method:
- -
- Accuracy:
- ±5%
- Voltage - Input:
- 4.5V ~ 60V
- Current - Output:
- 880mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS26624DRCT FAQ
1.How can I place an order for TPS26624DRCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS26624DRCT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS26624DRCT reliable?
The price and inventory of TPS26624DRCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS26624DRCT is usually 5 days.
3.What payment methods are accepted for TPS26624DRCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS26624DRCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS26624DRCT?
TPS26624DRCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS26624DRCT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS26624DRCT?
For technical support, including TPS26624DRCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS26624DRCT requirements.
6.How does Aetrix verify that TPS26624DRCT is sourced from the original manufacturer or authorized distributors?
All TPS26624DRCT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS26624DRCT meets industry standards.
7.What is the process for return or replacement of TPS26624DRCT?
All TPS26624DRCT units undergo pre-shipment inspection (PSI). If there is an issue with TPS26624DRCT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS26624DRCT part is unused and in its original packaging.
Return procedure for TPS26624DRCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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